There are quite a few upcoming Freeview retune events to clear UHF channel numbers 61 - 62 so that they can be used for 4G services. THIS PAGE contains a list of dates and transmitters affected, together with the new UHF channel numbers.
This page lists details of forthcoming retune events linked to the clearance of frequencies for 4G mobile services. Viewers with Freeview in the affected areas will need to retune on the dates listed. Main transmitters are listed first, followed by relay transmitters on a given date. A description of what happens at each site is provided. Information from Digital UK.